Komatsu Engine D85A-21 Shop Manual SEBM015C2104 – PDF DOWNLOAD

Description

Komatsu Engine D85A-21 Shop Manual SEBM015C2104 – PDF DOWNLOAD

FILE DETAILS:

Komatsu Engine D85A-21 Shop Manual SEBM015C2104 – PDF DOWNLOAD

Language : English
Pages :392
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Komatsu Engine D85A-21 Shop Manual SEBM015C2104 – PDF DOWNLOAD

MACHINE MODEL SERIAL No,. D85A-21      35001 and up

FOREWORD

• This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
• This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into chapters for each main group of components; these chapters are further divided into the following sections.

TABLE OF CONTENTS:

Komatsu Engine D85A-21 Shop Manual SEBM015C2104 – PDF DOWNLOAD

MACHINE MODEL SERIAL No,. D85A-21      35001 and up          

COVER 1
CONTENTS 2
10 ENGINE 16
12 TESTING AND ADJUSTING 16
TABLE OF JUDGEMENT STANDARD VALUE 17
TESTING AND ADJUSTING TOOL LIST 19
ADJUSTING VALVE CLEARANCE 20
MEASURING COMPRESSION PRESSURE 21
TESTING AND ADJUSTING FUEL INJECTION TIMING 22
BLEEDING AIR FROM FUEL SYSTEM 23
13 DISASSEMBLY AND ASSEMBLY 24
STARTING MOTOR 25
REMOVAL 25
INSTALLATION 25
ALTERNATOR 25
REMOVAL 25
INSTALLATION 25
NOZZLE HOLDER 25
REMOVAL 25
INSTALLATION 25
FUEL INJECTION PUMP 27
REMOVAL 27
INSTALLATION 27
ENGINE OIL COOLER 27
REMOVAL 27
INSTALLATION 27
THERMOSTAT 27
REMOVAL 27
INSTALLATION 27
WATER PUMP 29
REMOVAL 29
INSTALLATION 29
TURBOCHARGER 29
REMOVAL 29
INSTALLATION 29
CYLINDER HEAD 31
REMOVAL 31
INSTALLATION 35
RADIATOR GUARD 41
REMOVAL 41
INSTALLATION 41
RADIATOR 43
REMOVAL 43
INSTALLATION 43
PTO 45
REMOVAL 45
INSTALLATION 45
DISASSEMBLY 47
ASSEMBLY 49
FUEL TANK 51
REMOVAL 51
INSTALLATION 51
ENGINE 53
REMOVAL 53
INSTALLATION 57
20 POWER TRAIN 61
21 STRUCTURE AND FUNCTION 61
GENERAL 62
POWER TRAIN HYDRAULIC SYSTEM 64
POWER TRAIN HYDRAULIC CIRCUIT DIAGRAM 65
TORQUE CONVERTER 66
TORQFLOW TRANSMISSION 70
TRANSMISSION CONTROL 76
TRANSMISSION HYDRAULIC PIPING 77
TORQFLOW HYDRAULIC SYSTEM 78
TORQFLOW HYDRAULIC CIRCUIT DIAGRAM 79
TRANSMISSION CONTROL VALVE 80
TRANSMISSION LUBRICATION VALVE 85
TRANSMISSION PUMP 86
TRANSMISSION AND STEERING OIL STRAINER 87
TRANSMISSION AND STEERING OIL FILTER 88
BEVEL GEAR SHAFT AND STEERING CLUTCH 89
STEERING CONTROL 91
STEERING HYDRAULIC PIPING 92
STEERING AND BRAKE HYDRAULIC SYSTEM 93
STEERING AND BRAKE HYDRAULIC CIRCUIT DIAGRAM 94
STEERING PUMP 95
STEERING MAIN RELIEF VALVE 96
STEERING AND BRAKE CONTROL VALVE 97
STEERING BRAKE 101
FINAL DRIVE105
PTO106
22 TESTING AND ADJUSTING107
STANDARDS FOR TESTING AND ADJUSTING108
TESTING AND ADJUSTING TOOL LIST110
MEASURING TORQUE CONVERTER STALL SPEED111
MEASURING OIL PRESSURE112
ADJUSTING FUEL CONTROL LINKAGE114
ADJUSTING GEAR SHIFT LEVER 116
ADJUSTING STEERING CLUTCH LINKAGE117
ADJUSTING TRAVEL OF BRAKE PEDAL118
ADJUSTING BRAKE PEDAL LINKAGE119
TROUBLESHOOTING120
PREPARATION FOR TROUBLESHOOTING120
METHOD OF READING TROUBLESHOOTING TABLE122
PREVENTING RECURRENCE OF THE SAME TROUBLE124
TROUBLESHOOTING 125
1 TORQUE CONVERTER TEMPERATURE TOO HIGH125
2 MACHINE DOES NOT MOVE126
3 MACHINE LACKS POWER OR SPEED128
4 MACHINE MOVES WHEN ENGINE IS STARTED129
5 EXCESSIVE TIME LAG WHEN STARTING MACHINE OR SHIFTING GEAR129
6 EXCESSIVE SHOCK WHEN STARTING MACHINE OR SHIFTING GEAR130
7 MACHINE TRAVELS IN ONE DIRECTION ONLY (FORWARD OR REVERSE)130
8 STEERING CLUTCH DOES NOT DISENGAGE131
9 STEERING CLUTCH SLIPS132
10 STEERING BRAKE DOES NOT WORK133
23 DISASSEMBLY AND ASSEMBLY134
TORQUE CONVERTER135
REMOVAL135
INSTALLATION135
DISASSEMBLY137
ASSEMBLY143
TORQUE CONVERTER RELIEF VALVE149
REMOVAL149
INSTALLATION149
DISASSEMBLY149
ASSEMBLY149
TORQUE CONVERTER REGULATOR VALVE149
REMOVAL149
INSTALLATION149
DISASSEMBLY149
ASSEMBLY149
TRANSMISSION151
REMOVAL151
INSTALLATION153
DISASSEMBLY155
ASSEMBLY167
TRANSMISSION CONTROL VALVE181
REMOVAL181
INSTALLATION181
DISASSEMBLY183
ASSEMBLY185
TRANSMISSION LUBRICATION VALVE187
REMOVAL187
INSTALLATION187
DISASSEMBLY187
ASSEMBLY187
BEVEL GEAR AND SHAFT189
REMOVAL189
INSTALLATION 193
STEERING CLUTCH199
REMOVAL199
INSTALLATION203
DISASSEMBLY207
ASSEMBLY209
BRAKE BOOSTER211
DISASSEMBLY211
ASSEMBLY211
STEERING RELIEF VALVE213
REMOVAL213
INSTALLATION213
DISASSEMBLY213
ASSEMBLY213
STEERING BRAKE VALVE215
REMOVAL215
INSTALLATION215
DISASSEMBLY 217
ASSEMBLY217
TRANSMISSION PUMP219
REMOVAL219
INSTALLATION219
STEERING PUMP219
REMOVAL219
INSTALLATION219
FINAL DRIVE221
DISASSEMBLY221
ASSEMBLY225
24 MAINTENANCE STANDARD231
TORQUE CONVERTER232
TORQFLOW TRANSMISSION234
TRANSMISSION CONTROL VALVE236
TRANSMISSION LUBRICATION VALVE238
TRANSMISSION PUMP239
BEVEL GEAR SHAFT240
STEERING CLUTCH242
STEERING PUMP244
STEERING MAIN RELIEF VALVE245
STEERING AND BRAKE CONTROL VALVE246
STEERING BRAKE248
FINAL DRIVE250
30 UNDERCARRIAGE252
31 STRUCTURE AND FUNCTION252
TRACK253
TRACK GROUP255
IDLER256
IDLER CUSHION257
TRACK ROLLER AND CARRIER ROLLER258
SUSPENSION259
33 DISASSEMBLY AND ASSEMBLY260
TRACK FRAME261
REMOVAL261
INSTALLATION261
RECOIL SPRING263
REMOVAL263
INSTALLATION263
DISASSEMBLY265
ASSEMBLY265
IDLER267
REMOVAL267
INSTALLATION267
TRACK ROLLER267
REMOVAL267
INSTALLATION267
CARRIER ROLLER269
REMOVAL269
INSTALLATION269
TRACK SHOE269
REMOVAL269
INSTALLATION269
34 MAINTENANCE STANDARD271
TRACK272
TRACK FRAME276
RECOIL SPRING277
IDLER278
TRACK ROLLER280
CARRIER ROLLER282
SUSPENSION283
60 HYDRAULIC SYSTEM284
61 STRUCTURE AND FUNCTION284
HYDRAULIC PIPING285
HYDRAULIC CONTROL287
HYDRAULIC SYSTEM289
HYDRAULIC CIRCUIT DIAGRAM290
HYDRAULIC TANK291
HYDRAULIC PUMP292
HYDRAULIC CONTROL VALVE293
HYDRAULIC LEVER OPERATION305
HYDRAULIC CYLINDER309
CYLINDER STAY313
62 TESTING AND ADJUSTING314
STANDARDS FOR TESTING AND ADJUSTING315
TESTING AND ADJUSTING TOOL LIST319
MEASURING OIL PRESSURE320
ADJUSTING BLADE CONTROL LINKAGE321
ADJUSTING RIPPER CONTROL LINKAGE322
TROUBLESHOOTING323
DIAGNOSTIC TABLES324
1 BLADE LIFT LACKS POWER AND SPEED324
2 BLADE DOES NOT LIFT325
3 THE FRONT OF MACHINE CANNOT BE RAISED OFF GROUND BY THE BLADE326
4 HYDRAULIC DRIFT OF LIFT CYLINDER IS LARGE327
5 BLADE MOVES UNSTEADILY WHEN LEVELING THE GROUND (CONTROL LEVER IN “HOLD”)328
6 BLADE LOWERS UNDER THE FOLLOWING CONDITIONS328
7 TRAVEL OF THE PISTON RODS IN THE RIGHT AND LEFT LIFT CYLINDERS IS DIFFERENT (APPLICABLE TO STRAIGHT-TILT DOZER ONLY)328
8 BLADE TILTING FORCE IS LACK, BLADE TILTING SPEED IS SLOW, THE MACHINE CANNOT BE RAISED OFF GROUND BY BLADE TILTING FORCE329
9 TILT CYLINDER DOES NOT MOVE OFF (TILTING IS IMPOSSIBLE)330
10 HYDRAULIC DRIFT OF TILT CYLINDER IS LARGE331
11 OPERATION FORCE IS HEAVY332
12 HYDRAULIC DRIFT OF RIPPER CYLINDER IS LARGE333
63 DISASSEMBLY AND ASSEMBLY334
HYDRAULIC PUMP335
REMOVAL335
INSTALLATION335
BLADE CONTROL VALVE335
REMOVAL335
INSTALLATION335
DISASSEMBLY337
ASSEMBLY339
RIPPER CONTROL VALVE341
REMOVAL341
INSTALLATION341
DISASSEMBLY343
ASSEMBLY343
BLADE LIFT CYLINDER345
REMOVAL345
INSTALLATION345
BLADE TILT CYLINDER345
REMOVAL345
INSTALLATION345
RIPPER CYLINDER347
REMOVAL347
INSTALLATION347
HYDRAULIC CYLINDER349
DISASSEMBLY349
ASSEMBLY353
BLADE RELIEF VALVE357
REMOVAL357
INSTALLATION357
RIPPER RELIEF VALVE357
REMOVAL357
INSTALLATION357
64 MAINTENANCE STANDARD359
HYDRAULIC CONTROL VALVE360
HYDRAULIC CYLINDER364
CYLINDER STAY366
HYDRAULIC PUMP367
70 WORK EQUIPMENT368
71 STRUCTURE AND FUNCTION368
ANGLEDOZER369
STRAIGHT TILTDOZER371
FIXED MULTI-SHANK RIPPER373
73 DISASSEMBLY AND ASSEMBLY374
BLADE375
REMOVAL375
INSTALLATION375
DISASSEMBLY377
ASSEMBLY377
RIPPER379
DISASSEMBLY379
ASSEMBLY379
74 MAINTENANCE STANDARD381
ANGLEDOZER382
STRAIGHT TILTDOZER384
CUTTING EDGE, END FIT386
FIXED MULTI-SHANK RIPPER387
80 ELECTRIC SYSTEM388
81 STRUCTURE AND FUNCTION388
WIRING DIAGRAM389
90 OTHERS390
93 DISASSEMBLY AND ASSEMBLY390
FLOOR FRAME391
REMOVAL391
INSTALLATION391

IMAGES PREVIEW OF THE MANUAL:

S.M 22/12/24